Compact pressure causes a martensitic transformation of partially stabilized tetragonal bismuth-doped ZrO2 powders to the monoclinic phase, A similar effect is not observed when pelletization, followed by firing, of amorphous bismuth/ZrO2 is performed, The stress-induced transition has been monitored via X-ray diffractometry, Raman spectroscopy, and Fourier transform infrared reflectivity. Surface bismuth segregation, which involves few ionic planes, has been probed by angle-resolved X-ray photoelectron spectroscopy, The bismuth segregation enthalpy has been evaluated.
Titolo: | Mechanically induced phase transformation and surface segregation in bismuth-doped tetragonal zirconia | |
Autori interni: | ||
Data di pubblicazione: | 1998 | |
Rivista: | ||
Handle: | http://hdl.handle.net/20.500.11769/13352 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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